

#buttonbar{
  z-index:5;
  position:absolute;
  left:0px;
  top:0px;
  width:100%;
  height:20px;
  background-color:white;
}
  
.guide{
  left:0px;
  top:0px;
  right:0px;
  bottom:0px;
  z-index:1;
  border:1px dashed black;
  position:absolute;
  overflow:hidden;
  cursor:crosshair;
}

.line{
  height:1px;
  width:100%;
  background-color:black;
  z-index:-1;
  position:absolute;
  top:20px;
}

.tab{
  cursor:pointer;
  background-color:#ffffaa;
  height:19px;
  border-left:1px solid black;
  border-right:1px solid black;
  border-top:1px solid black;
  border-bottom:1px solid black;
  margin-left:5px;
  float:left;
}
